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Oracle® SuperCluster M8 and SuperCluster M7 Overview Guide

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Updated: March 2020
 
 

Specify Memory Resources in Configuration Worksheets (Prior to the Installation)

Use this task when completing your Configuration Worksheets prior to the SuperCluster installation.

Every CMIOU has 16 memory slots.

  • • SuperCluster M8 – Each CMIOU is fully populated with 64 GB DIMMs, for a total of 1 TB (1024 GB) of memory in each CMIOU, with 960 GB available after DIMM sparing.

  • • SuperCluster M7 – Each CMIOU is fully populated with 32 GB DIMMs, for a total of 512 GB of memory in each CMIOU, with 480 available after DIMM sparing.

  1. Determine the default memory resources for the domains in your SuperCluster configuration.

    Refer to the applicable Domain Specifications in these sections:

  2. If the default memory allocations are not ideal, determine and specify the memory resources that should be assigned to each domain.

    Enter the amount of memory for each domain in the Configuration Worksheet.

    Example

    For a U2-2 domain configuration (two domains in a PDomain). by default, 50% of the memory resources are assigned to each domain. Alternatively, you can specify different values for each domain, such as 60% of the memory resources to the first domain and 40% to the second domain.

    In this example, the total memory resources for SuperCluster M8 with a U2-2 configuration is 1.92 TB. A 60% / 40% configuration allocates these CPU resources (values are rounded):

    • Domain 1 – 1.15 TB

    • Domain 2 – 768 GB

  3. If any Database Domains will include zones, enter memory resource information into the Configuration Worksheets.

    Enter the memory resources for each zone in the Configuration Worksheet.

    Example

    The first domain is a Database Domain that will contain four equal-sized zones.

    Domain 1 has 1.15 TB of memory. 1.15 / 4 = 480 GB per zone.

  4. For Root Domains, specify the memory resources for I/O Domains.

    Enter the memory resources for each I/O Domain in the Configuration Worksheet.

    Example:

    The second domain is a Root Domain that will support four equal-sized I/O Domains.

    Domain 2 has 768 GB of memory. Subtract 32 GB (minimum required) for the Root Domain itself. That leaves 736 GB for I/O Domains. 736 / 4 = 184 GB of memory per I/O Domain.

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